hddtemp: apply hddtemp-db.patch to our hddtemp.db

* some versions of patch utility refuse to accept such patch:
  ERROR: Command Error: exit status: 1  Output:
  Applying patch hddtemp-db.patch
  Ignoring potentially dangerous file name ../hddtemp.db
  can't find file to patch at input line 7

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>